8403966 has 32 divisors (see below), whose sum is σ = 19660800. Its totient is φ = 2653560.

The previous prime is 8403959. The next prime is 8403977. The reversal of 8403966 is 6693048.

It is a self number, because there is not a number n which added to its sum of digits gives 8403966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3070 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (614400).

Almost surely, 2^8403966 is an apocalyptic number.

8403966 is an abundant number, since it is smaller than the sum of its proper divisors (11256834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8403966 is a wasteful number, since it uses less digits than its factorization.

8403966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8221 (or 8215 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 8403966 is about 2898.9594684990. The cubic root of 8403966 is about 203.3112586146.

The spelling of 8403966 in words is "eight million, four hundred three thousand, nine hundred sixty-six".